KARL Robinson admitted Oxford United had allowed another game to slip away as they dropped back into the relegation zone.

Having played against ten men for almost 80 minutes, a stalemate at Burton Albion was scant consolation for the dominant visitors.

It extend the side’s unbeaten run in Sky Bet League One to four games, but three of those have been draws.

It came four days after letting a two-goal lead slip in the final 20 minutes to finish 2-2 against Barnsley and failing to cash in when they have the

upper hand is becoming a familiar story.

As a result, United returned to the bottom four.

“It’s frustrating because we certainly shouldn’t be in it,” Robinson said.

“That’s the infuriating thing as a manager – you question yourself first and foremost, but I look at what more could we have done.

“I just think we could have been more ruthless at the right times.

“That’s something we’ll take away from this – that again we’ve probably let another game pass us by.

“Everyone’s motivated to be successful, we’ve just found ourselves (in the relegation zone) because of days like this.

“I don’t think we have a ruthless edge and when it’s not there we can look a very average team.”

He added: “We deserved to win here, let’s not get carried away.

“They went down to ten men very early on and we’ve dominated the game.

“We should use that as a positive going forward.”

Jerome Sinclair was handed a debut from the start, two days after his deadline-day arrival.

The forward fell flat on his face in the second minute, but it was his pace which led to John Brayford’s early dismissal.

Robinson said: “The first touch was comical, but take that away he looked a real threat in behind.

“The game plan to get him in behind worked, because we got the man sent off.

“It’s not something we’ve seen here for a long time.

“He got in behind and asked questions of the opposition and it will come.”